[meteorite-list] Meteorites 'Cause Volcanic Eruptions'

From: Rob McCafferty <rob_mccafferty_at_meteoritecentral.com>
Date: Thu, 11 Sep 2008 07:02:28 -0700 (PDT)
Message-ID: <521551.27672.qm_at_web55201.mail.re4.yahoo.com>

Quote the following lines:

Volcanic eruptions occur when the gas, which arrived when the world was in a molten state and is trapped in the deep Earth, melts

Prof Ballentine and his team also identified a second signature, obtained via studying CO2 gas from the Colorado Plateau, which is identical to seawater.

Previous thinking had stated that water at these depths would be impossible due to it melting during the subduction process.


Hmmm. Gas melting, Co2 exactly the same as seawater and water melting during subduction. OK let's assume this is simply a case of appaling grammar, how can you take such poorly presented material seriously.
The second half of the report has flip all to do with the first half. You really have to be paying attention to spot the word "also" and realise it marks the boundary between two unrelated threads.
I suspect it's just another case of a reporter not knowing what the fuss he's talking about. LHC anyone?
Rob McC


--- On Thu, 9/11/08, Jerry <grf2 at verizon.net> wrote:

> From: Jerry <grf2 at verizon.net>
> Subject: Re: [meteorite-list] Meteorites 'Cause Volcanic Eruptions'
> To: "Ron Baalke" <baalke at zagami.jpl.nasa.gov>, "Meteorite Mailing List" <meteorite-list at meteoritecentral.com>
> Date: Thursday, September 11, 2008, 1:10 AM
> We've gota love this!!!!!!!!!!!!!
> Where are those immense Deccan Volcanic flats that
> accounted for Extinction?
> India??
> Jerry Flaherty
> ----- Original Message -----
> From: "Ron Baalke"
> <baalke at zagami.jpl.nasa.gov>
> To: "Meteorite Mailing List"
> <meteorite-list at meteoritecentral.com>
> Sent: Wednesday, September 10, 2008 1:46 PM
> Subject: [meteorite-list] Meteorites 'Cause Volcanic
> Eruptions'
>
>
> >
> >
> http://www.inthenews.co.uk/news/healthandscience/science/meteorites-cause-volcanic-eruptions-$1239971.htm
> >
> > Meteorites 'cause volcanic eruptions'
> > In The New (United Kingdom)
> > September 10, 2008
> >
> > Violent volcanic eruptions witnessed from the dawn of
> time to the
> > present day could all have been prompted by meteorite
> strikes billions
> > of years ago.
> >
> > Geologists are presenting new evidence that
> contradicts the belief the
> > gas that causes volcanoes to erupt - 'light'
> helium - came to Earth via
> > its gravitational pull.
> >
> > Volcanic eruptions occur when the gas, which arrived
> when the world was
> > in a molten state and is trapped in the deep Earth,
> melts.
> >
> > But University of Manchester scientists say that the
> 'fingerprint' left
> > by the 3He isotope does not match solar nebula but
> instead meteorites.
> >
> > "We have shown that the neon gas fingerprint
> expected for the captured
> > solar nebula model is not matched," Professor
> Chris Ballentine said.
> >
> > "Instead we have found a meteorite signature,
> which suggests the massive
> > early atmosphere is not trapped by gravitational
> attraction as
> > originally thought but a result of meteorites spewing
> out gas on impact."
> >
> > Prof Ballentine and his team also identified a second
> signature,
> > obtained via studying CO2 gas from the Colorado
> Plateau, which is
> > identical to seawater.
> >
> > "The only explanation for this is that seawater
> trapped in ocean crust
> > is being driven back down into the deep Earth in a
> tectonic process
> > called subduction," he explained.
> >
> > Previous thinking had stated that water at these
> depths would be
> > impossible due to it melting during the subduction
> process.
> >
> > "This process has the potential to fundamentally
> change how scientists
> > think Earth has behaved over time. Even a little bit
> of water added to
> > rock in the deep earth makes it more plastic and
> allows movement of
> > tectonic plates sitting on top to be quicker,"
> Prof Ballentine added.
> >
> > "The source and fate of atmospheres and water on
> planets is central to
> > understanding the origin of life and the conditions
> that lead to our own
> > planet looking as it does today. Our work provides
> evidence that changes
> > our big picture understanding of how planetary systems
> acquire their
> > volatile elements.
> >
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> >
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Received on Thu 11 Sep 2008 10:02:28 AM PDT